Mendalian Inheretance Flashcards

1
Q

What is the difference between independent assortment and Segregation?

A

The law of segregation says that only one of the parent’s two alleles get passed on.

The law of independent assortment says that the combinations of alleles will be random.

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2
Q

Give an example of a hemizygous gene

A

SRY. Only one copy

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3
Q

Give an example of penetrance.

A

A gene with High penetrance would be one that affects most people who have it.

Low penetrance means that although an individual has a gene, they dont express the disease.

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4
Q

Give an example of Expressivity.

A

SEXY1 makes attractive people. Some people with SEXY1 are quite ugly. Others with SEXY1 are dead sexy.

This is expressivity

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5
Q

Give an example of Pleiotropy

A

A mutation in a pigmentation gene could not only affect skin color, but hair color and eye color as well.

One gene codes for multiple traits

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